Sia Accidentally Shows Her Face During Windy Concert in US

The famously private singer was performing at the opening night of SeriesFest, when a gust of wind revealed her face.

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But the show went on and the 40-year-old continued her performance alongside Dance Moms' star Maddie Ziegler.

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Sia once told Nightline’s Chris Conley that she chooses to keep her identity private because she doesn’t “want to be famous, or recognisable. I don't want to be critiqued about the way that I look on the internet."